Striker-Fired
A pistol design that uses a spring-loaded internal striker instead of an external hammer to ignite the primer.
A striker-fired pistol replaces the traditional hammer-and-firing-pin with a single spring-loaded striker inside the slide. Pulling the trigger releases (and on many designs partially cocks) the striker, which flies forward to hit the primer. Glock popularized the layout, and it now dominates modern carry and duty pistols.
Striker guns are prized for their simplicity, consistent trigger pull, low bore axis, and lack of external hammer to snag. They typically lack a manual external hammer to thumb-cock or decock, relying instead on internal safeties (trigger, firing pin, and drop safeties). Compare with single- and double-action hammer-fired designs.